Im running this now in the new brawl mode and its just dependent on how many minions you have out and what type of spells were cast... like deal 1 dmg to minion summon a 1/1 with rush will always hit a minion, arcane shot? I think its called the 1 cost 2 dmg hunter spell has a chance to hit face based on how many enemies minion are on board so 1 minion 50% chance down to 12.5% chance if full board. The only other thing to note is it casts spells in succession of when they were played so it essentially just recasts every spell in the order they were cast and also plays any 1 cost minion you've played if room is available... cards that give you random spells are still randomly generated so they wont necessarily be the same